PIPE, DIE, AND METHOD FOR MANUFACTURING PIPE

Title:

PIPE, DIE, AND METHOD FOR MANUFACTURING PIPE

Document Type and Number:

WIPO Patent Application WO/2016/113992

Kind Code:

A1

Abstract:

A metal pipe having a curved section obtained by bending, the pipe characterized in that a plurality of non-curved faces and a plurality of bent sections obtained by flexing and connecting the plurality of non-curved faces are provided to an inside peripheral face toward the center of curvature of the curved section. Through this pipe, a good appearance can be maintained, and it is possible to reduce stagnation or resistance of flow on the inside of a pipe through which a fluid passes.

Inventors:

KOBAYASHI NORIO (JP)
NAKAZATO KAZUHIKO (JP)

Application Number:

PCT/JP2015/081714

Publication Date:

July 21, 2016

Filing Date:

November 11, 2015

Export Citation:

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Assignee:

SANOH IND CO LTD (JP)

International Classes:

B21D7/025

Foreign References:

JP2012135797A	2012-07-19
JP2001047141A	2001-02-20

Other References: